People who have made arrangements have been blocked by circumstances, they should let their nails and hair grow during dhulhajj and cut nails and hair on Eid day after qurbani. IA their Hajj would be accepted.

As a principle, all the Ibaadah can be performed as a ‘Nafal’ given the terms and conditions (i.e. preconditions) of the said Ibadah’ are met. These terms and conditions may include, but not limited to, locality, state of ‘Taharat’, particular time and day on which they are to be performed. Like ‘Salah’ has certain timing restrictions (very limited restrictions though), so in the allowed timings it can be performed even at home as a ‘Nafal’. However, Hajj and umrah both have a precondition to be performed in the presence of ‘Maabad’ which is ‘Masjid-e-Haram’ in this case. Hajj also has a specific days on which it can be performed only. So given the nature of preconditions, it can be said that Hajj and Umrah cannot be performed virtually because physical presence in ‘Maabad’ is a necessary precondition for it to be a valid ‘Ibaadah’.

Kindly refer to following video from 56:14 to 1:06:38.

Here Ghamidi Sahab is explaining the whole scheme of Hajj, specifically as to how it includes Muslims from every sphere of life and what other Muslims can do in case they can’t perform Hajj physically, whether due to financial or other constraints, all inclusive.

https://www.youtube.com/watch?v=DOV1jJ-HY6k

“Nope, because for Hajj, presence at site is essential” – Dr. Shehzad Saleem

@Idris